'I don't get to travel as much as I'd like," says Xili, my guide in Panama City. "That's why I love meeting couchsurfers. I feel like I'm travelling with them."

Born in Nicaragua but having spent 14 of her 26 years in Panama, she discovered couchsurfing.com just three months ago, becoming an instant convert to the concept of volunteering to host passing travellers. Although she can't follow the literal interpretation of having people sleeping on her couch ("My roommate doesn't understand"), she is happy to show just about anyone around the country's booming capital.

Panama City has been nicknamed the "Miami of the south" and the parallels are as glaring as the sunlight: waterside skyscrapers, palm-lined avenues, multicultural cuisine, mind-boggling commercialism . . . but it was the tales of its pulsating nightlife that caught my attention. My travel-networking experiment across Central and South America got off to a great start in Ecuador, but I've yet to arrange a big night with a local.

If anyone was up for taking things up a notch, it was Xili (pictured above, right), a hardworking, hard-playing lawyer. With her couchsurfing profile listing music, partying and dancing among her interests, I was sure she could show me a good time.

"I hope you're not planning to sleep tonight," she says with a grin, as we come face to face for the first time, having exchanged a series of emails. We've arranged to meet in Casco Viejo, the city's most up-and-coming neighbourhood, where derelict colonial buildings are slowly being renovated and a creative undercurrent is bubbling.

What follows is an all-night tour of her favourite night spots. We start with Casco Viejo's La Casona de las Brujas (enlacasona.com, a live music venue with an open-air courtyard decked in fairylights) and Baños Publicos (Plaza Herrera's former public bathroom now hosting alternative rock bands). Then, in the early hours, we move on to the bright lights of Calle Uruguay, where minimalist S6IS satisfies Xili's craving for reggaeton, and the more mainstream rock venue Sahara fits the bill when she has a sudden "need for David Bowie".

Would I have found these places alone? Maybe. In such a short time frame? Unlikely. Xili's tour is the equivalent of a shot glass of pure liquor - it provides an instant hit of Panamanian nightlife, while the warm welcome from all her friends makes me feel right at home.

As for the nightlife itself, Calle Uruguay may be the country's much-hyped nightlife avenue, but, for me, it's the Casco Viejo venues - less commercial, more bohemian - that leave a lasting impression.

Getting back to my hostel just before dawn, an 8am start the next day is far from ideal, but I have prearranged a meet with my second Panama City contact, Gabriel from asmallworld.net).

ASW is one of a handful of invite-only travel networking sites (see also yacht6.com). How do you gain access to such a hallowed portal? Try asking around. A vague acquaintance - a self-confessed social-networking addict - helped get me through the door. (Although, if I fail to resist temptation to spam fellow members James Blunt and Naomi Campbell, I'll be out.)

ASW is undeniably elitist, nicknamed Snobster in reference to early social networking site Friendster. However, in my limited use, I've always met exceptions to the rule. Gabriel - a thirtysomething owner of an office supplies company and yoga teacher - is such an example: clearly well off, but down-to-earth, unassuming and very generous in his offer to let me join his out-of-town kitesurfing excursion.

Gabriel and friends spend every weekend camping out at Punta Chame, a little-known beach an hour and a half's drive from the city. "You just arrived in Panama and you're already at Punta Chame?" asks Amit, a fellow ASW member and kitesurfing addict, as I dip my toes in the Pacific for the first time. "You've certainly started at the top."

Jutting out on a peninsula, a clear day here offers views of the city and, when the tide is out, I have its expansive sands almost to myself, watching the kitesurfers crisscross the gentle waves. Later, as the wind subsides, we convene in the beach's only restaurant to refuel on fresh fish and patacones (thick slices of plantain, squashed and fried).

The surfers are a sociable bunch and I find myself leaving the beach with a collection of phone numbers. After just one week, I feel like I've already begun to establish a small social circle through Gabriel and Xili (who I see many more times). After receiving invites to group dinners, house parties, karaoke nights and even a gig in a rainforest, I become even more convinced that travel networking is the way forward.

I'm starting to feel Panama will be tough to leave, but, fortunately, I have one more week. Next up I'm planning to see the less glamorous side of the country in Colon with Xili, and meet Toyo, a travel-networking member of the Kuna tribe. "Amiga!" he writes, when I tell him I'm in the country. "Welcome to my home. See you next week."

Travel networking etiquette

Keep it personal

Contacting someone saying simply "Hello. Can I stay at your house for a week?" is unlikely to elicit a positive response. Introduce yourself and your plans. Where possible make the person feel you've chosen them for a reason.

Always reply

If you request to meet someone and they send a personal response to say they won't be able to make it, return the courtesy with a reply rather than just moving straight on to the next person.

Communicate

Keep to your plans. Don't leave your host waiting for you. Don't pull out at the last minute.

Give a little

If you're staying at someone's house, bring a gift (maybe something typical from your own country). If they're showing you around town, buy lunch or drinks if you can, and always pay your way.

Be courteous

If staying at someone's home, do not use it as a base to party with other people. Fit in with host's schedule. Don't sleep in for hours. Don't overstay your welcome.

Socialise

Make sure you spend time getting to know your host. If you're just after free accommodation or a tour guide, you've got the wrong idea.

Xili's tips where to stay in Panama City

Zuly's Backpackers

A tiny hostel with a friendly atmosphere. One of the best value and a good, central location.